Speaker installation help/ wiring help

[1hicj7]

I'm trying to put a new speaker in the right rear of my 1991 Explorer and cant figure out which wire is positive. Theres a red wire with a Blue stripe and a red wire with a green stripe. Which is which?

Thanks for your help!

 

[Jason94sport]

http://www.the12volt.com/installbay/stereodetail/855.html

But I don't see those colors listed......

 

[1hicj7]

thanks!

Thanks for the link! I'm going to go recheck the colors on the wires!